Question 1

Which of the following is NOT a characteristic shared by all living organisms?

Accepted Answer

Ability to spontaneously arise from chemical reactions

Question 2

The cell theory states all of the following EXCEPT:

Accepted Answer

All cells contain a nucleus

Question 3

A scientist discovers a microscopic organism that moves in response to energy from its environment, but never divides and eventually breaks down into chemicals. According to the characteristics of life, is this organism considered alive? Why or why not?

Accepted Answer

No, because it does not reproduce

Question 4

Which of the following best describes homeostasis?

Accepted Answer

The ability of an organism to maintain internal equilibrium by adjusting its physiological processes

Question 5

Why is it important for enzymes to function within a specific range of conditions?

Accepted Answer

Because outside their optimal range, enzymes may denature and lose their ability to catalyze reactions

Question 6

Which of the following is a real-world example of homeostasis in humans?

Accepted Answer

Maintaining blood glucose levels between 75-140 mg/dL throughout the day

Question 7

Which statement about the genetic material in cells is correct?

Accepted Answer

Genes are segments of DNA that code for proteins

Question 8

Which of the following is an abiotic factor in an organism's environment?

Accepted Answer

Temperature

Question 9

Why is evolution considered the central theme of biology?

Accepted Answer

Because it explains the genetic changes in species over time and the relationships among organisms

Question 10

Which equation best represents a linear relationship between attendance and final grade, as described in the study materials?

Accepted Answer

$$y = 0.5497x + 32.392$$

Question 11

Which of the following statements about enzymes is TRUE?

Accepted Answer

Enzymes are proteins that catalyze chemical reactions in organisms

Question 12

A fever causes a person's body temperature to rise above the normal range. What is the most likely effect on enzymes in the body?

Accepted Answer

Enzymes may denature and lose their function

Question 13

Which of the following is NOT a domain of life?

Accepted Answer

Fungi

Question 14

Which of the following best explains why all living organisms are considered to have descended from a common ancestor?

Accepted Answer

They share fundamental cellular structures and genetic material

Question 15

Which of the following is a biotic factor in an ecosystem?

Accepted Answer

Protists

Question 16

Which of the following is a correct statement about the function of cell membranes?

Accepted Answer

They enclose the cell and regulate the movement of substances in and out

Question 17

Which of the following is a reason why studying biology is important for making informed decisions about health and society?

Accepted Answer

It helps us understand the context of human health and potential future problems

Question 18

Which of the following is TRUE about the tolerance ranges of organisms?

Accepted Answer

Different species have different tolerance ranges for variables like temperature and pH

Question 19

Which of the following is a correct definition of a gene?

Accepted Answer

A segment of DNA that codes for a protein

Question 20

Which of the following best describes the relationship between structure and function in biology?

Accepted Answer

The structure of an organism or cell determines how it functions

Introduction to Organismal and Evolutionary Biology: Study Guide

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